<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>外部样式</title>
  <link rel="stylesheet" href="./css/style.css">
</head>
<body>
  <p>哈哈哈哈我的小猫暴脾气</p>
  <div>哈哈我的小猫也暴脾气</div>
</body>
</html>